A flue gas and dust sampling device with high efficiency in removing water.

Abstract

This invention discloses a flue gas sampling device with high-efficiency water removal function, comprising: a gas-water separator, a housing of the gas-water separator, a diversion gas inlet pipe and an outlet pipe connected to the housing, a condensation chamber and a drying chamber inside the housing, the diversion gas inlet pipe being connected to the condensation chamber, a desiccant being placed in the drying chamber, and the outlet pipe being connected to the drying chamber; a flue gas sampling main unit, the flue gas sampling main unit being equipped with a flue gas inlet and a flue gas inlet, the flue gas inlet being connected to the outlet pipe; the flue gas sampling main unit is equipped with a flue gas sampling device and a flue gas sampling device, the flue gas sampling device including a gas chamber, a flue gas suction pump assembly, and a flue gas drainage pump, the flue gas drainage pump being connected to a flue gas drainage outlet; the flue gas sampling device including a diaphragm pump, an electrochemical sensor assembly, and a flue gas drainage pump, the electrochemical sensor assembly being equipped with a flue gas drainage outlet, the flue gas drainage pump being connected to the flue gas drainage outlet. This invention has the advantage of high-efficiency water removal.

Description

Technical Field

[0001] This invention relates to the field of flue gas sampling technology, and in particular to a flue gas sampling device with efficient water removal function. Background Technology

[0002] Smoke and flue gas are major sources of air pollution. With social development, more and more places are illegally emitting smoke and flue gas, which is making air pollution increasingly serious. To address this situation, relevant departments use specialized smoke and flue gas sampling equipment to conduct on-site testing. Existing smoke and flue gas sampling equipment can sample and test smoke and flue gas separately. When high-temperature smoke and flue gas enters the sampling equipment, due to the significant temperature difference between the smoke and flue gas and the internal measuring devices, the smoke and flue gas easily condenses, forming condensate. This condensate can cause the intake pump, sensors, and other electromechanical and measuring devices to malfunction or produce inaccurate measurement and analysis results, while also reducing the lifespan of these components. Summary of the Invention

[0003] The purpose of this invention is to provide a flue gas sampling device with efficient water removal function that increases the service life of electromechanical and measuring devices and improves the accuracy of detection results.

[0004] To achieve the above objectives, this invention discloses a flue gas sampling device with high-efficiency water removal function, comprising: a gas-water separator; a housing of the gas-water separator; a diversion pipe and an outlet pipe connected to the housing; a condensation chamber and a drying chamber inside the housing; the diversion pipe leading to the condensation chamber; an inlet section at the upper part of the diversion pipe; and multiple outlet pipes connected to the lower part of the diversion pipe; a conical diverter inside the diversion pipe, used to divert the flue gas entering from the inlet section into each outlet pipe; all outlet pipes opening towards the side wall of the condensation chamber; a metal plate with multiple small holes between the outlet pipes and the side wall of the condensation chamber; and a filter screen on the upper wall of the condensation chamber, through which the gas flows to the drying chamber. The drying chamber contains a desiccant, and the exhaust pipe is connected to the drying chamber. A dust and flue gas sampling host is provided, equipped with a dust inlet and a flue gas inlet, the dust inlet being connected to the exhaust pipe. The dust and flue gas sampling host contains a dust sampling device and a flue gas sampling device. The dust sampling device includes a gas chamber, a dust suction pump assembly, and a dust drainage pump. The dust inlet, gas chamber, and dust suction pump assembly are sequentially connected. The gas chamber has a dust drainage outlet, and the dust drainage pump is connected to the dust drainage outlet. The flue gas sampling device includes a diaphragm pump, an electrochemical sensor assembly, and a flue gas drainage pump. The flue gas inlet, diaphragm pump, and electrochemical sensor assembly are sequentially connected. The electrochemical sensor assembly has a flue gas drainage outlet, and the flue gas drainage pump is connected to the flue gas drainage outlet.

[0005] Preferably, the bottom of the condensing chamber is provided with a drain port, and a plug can be detachably installed on the drain port; a vertical partition plate is provided inside the drying chamber, which divides the drying chamber into a first chamber and a second chamber, and a communication port is provided between the first chamber and the second chamber. The condensing chamber is connected to the first chamber through a filter screen; the exhaust pipe is located at the top of the second chamber; the upper part of the partition plate is connected to the top of the inner wall of the shell, and the lower part of the partition plate is left with a gap to the bottom of the inner wall of the shell to form a communication port; the feed port is located below the partition plate and below the communication port, and an end cap can be detachably installed on the feed port. The upper part of the shell is provided with a handle; all exhaust pipes are arranged in a ring along the axis of the diversion exhaust pipe; there are four exhaust pipes and four metal plates, and the four exhaust pipes open towards the front wall, rear wall, left wall and right wall of the condensing chamber, respectively, and the metal plates are arranged in a one-to-one correspondence with the exhaust pipes.

[0006] Preferably, the electrochemical sensor assembly includes a front panel, a rear panel, and multiple sensors. Both the front and rear panels have multiple sensor mounting ports, all connected via gas channels. Each sensor is mounted in a corresponding manner to its mounting port. The front panel has an air inlet, an air outlet, and a drainage channel. The flue gas drainage port is located on the front panel. The air inlet and outlet are located at the beginning and end of the gas channel, respectively. The two ends of the drainage channel are connected to the gas channel and the flue gas drainage port, respectively. The front and rear panels enclose and seal the sensors, drainage channel, and gas channel. The diaphragm pump is connected to the flue gas inlet and the air inlet. The number of sensor mounting ports exceeds two, including a first mounting port and a second mounting port. The air inlet is connected to the first mounting port. There are two drainage channels, with the beginnings of both channels connected to the first and second mounting ports, respectively, and the ends of both channels connected to the flue gas drainage port.

[0007] Preferably, the gas chamber has a dust filter and a flue gas filter with identical structures on the side wall facing the flue gas sampling host. The dust inlet and the flue gas inlet are respectively connected to the dust filter and the flue gas filter. The gas chamber has a filter element cavity. The dust filter includes a filter element disposed in the filter element cavity, a sealing ring for sealing the filter element cavity, and a sealing cover for opening or closing the filter element cavity. The sealing cover seals the sealing ring and the filter element together in the filter element cavity. The filter element cavity is connected to the dust inlet. The sealing cap has outwardly protruding locking protrusions, and the opening of the filter element cavity has a slot for the locking protrusions to enter and exit. The filter element cavity has a slot that engages with the locking protrusions. After the locking protrusions of the sealing cap pass through the slots and rotate, they are constrained and fixed by the slots. There are multiple locking protrusions and slots. All the locking protrusions are arranged in a ring along the axis of the sealing cap, and all the slots are arranged in a ring along the axis of the opening of the filter element cavity. The locking protrusions and slots are arranged in a one-to-one correspondence. The air chamber and the sealing cap are both made of rigid transparent plastic.

[0008] Preferably, the smoke and dust suction pump assembly includes a base and a cover. An air pump is mounted on the base, and the cover encloses the air pump on the base. The bottom of the base has multiple rubber support feet. The base has a sound inlet for sound entry, and a sound-diffusing tube is located inside the base. One side of the sound-diffusing tube has multiple sound-diffusing holes, and the other side of the tube is sealed. The sound-diffusing tube is located below the sound inlet. The base also has multiple reflector tubes, all of which are parallel to and spaced apart from the sound-diffusing tube. A hollow hole is formed in the middle of each rubber support foot. The inner wall of the cover is lined with sound-absorbing cotton. The base has two mounting holes through which the air pump is fixedly mounted. Both the inner and outer walls of the base are lined with sound-absorbing cotton. The smoke and dust inlet nozzle, air chamber, and air pump are sequentially connected.

[0009] Preferably, the cover has heat dissipation vents at both ends, and a battery cooling fan and a pump cooling fan are respectively installed at the two vents. The smoke and gas sampling host also has a battery compartment. The battery compartment and the battery cooling fan are arranged side by side with a gap. Both the battery cooling fan and the pump cooling fan are arranged to blow air to the right. The battery cooling fan, the pump cooling fan and the suction pump are electrically connected to the battery compartment. The battery compartment and the battery cooling fan are arranged at least 5 cm apart. The left and right sides of the instrument body are respectively provided with battery heat dissipation holes and pump heat dissipation holes. The battery compartment is arranged close to the battery heat dissipation holes and the pump cooling fan is arranged close to the pump heat dissipation holes.

[0010] The beneficial effects of this invention are as follows: The flue gas sampling device of this invention with efficient water removal function removes water from the flue gas before it enters the device. After the flue gas and dust enter the device separately, the flue gas drainage pump can discharge the condensate in the flue gas sampling device, and the flue gas drainage pump can discharge the condensate in the electrochemical sensor components in the flue gas sampling device, thereby increasing the service life of electromechanical and measuring devices and improving the accuracy of detection results.

[0011] The invention will become clearer from the following description, taken in conjunction with the accompanying drawings, which are used to explain embodiments of the invention. Attached Figure Description

[0012] Figure 1 The diagram shows a structural schematic of a flue gas and dust sampling device with high-efficiency water removal function.

[0013] Figure 2 As shown Figure 1 Schematic diagram of the electrochemical sensor assembly and flue gas drainage pump;

[0014] Figure 3 As shown Figure 2 Schematic diagram of the front and middle panels;

[0015] Figure 4 As shown Figure 1 Cross-sectional view of a gas-water separator;

[0016] Figure 5 As shown Figure 4 Schematic diagram of the mid-splitter impact tube;

[0017] Figure 6 As shown Figure 1 Schematic diagram of the structure of the flue gas and dust sampling host;

[0018] Figure 7 As shown Figure 6 A schematic diagram of the explosion separation of the gas chamber, flue gas filter, and dust filter;

[0019] Figure 8 This is a cross-sectional view of the air chamber and the dust filter;

[0020] Figure 9 The diagram shown is a structural schematic of the air pump, housing, and base.

[0021] Figure 10 As shown Figure 9 Schematic diagram of the suction pump and base;

[0022] Figure 11 As shown Figure 9 Schematic diagram of the internal structure of the base;

[0023] Figure 12 The diagram shows the structure of the battery compartment, air pump, cover, base, battery cooling fan, and air pump cooling fan.

[0024] Figure 13 As shown Figure 12 A schematic diagram of the intake pump, base, battery cooling fan, and intake pump cooling fan structure after removing the cover. Detailed Implementation

[0025] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0029] refer to Figures 1 to 5 A flue gas sampling device with high-efficiency water removal function includes a gas-water separator 1000. The gas-water separator 1000 has a housing 100, on which a diversion impingement pipe 400 and an outlet pipe 150 are connected. The housing 100 contains a condensation chamber 110 and a drying chamber 120. The diversion impingement pipe 400 is connected to the condensation chamber 110. The upper part of the diversion impingement pipe 400 is an air inlet section, and the lower part of the diversion impingement pipe 400 is connected to multiple exhaust pipes 420. A conical diverter 410 is installed inside the air pipe 400. The conical diverter 410 is used to divert the flue gas entering from the intake section into each exhaust pipe 420. All exhaust pipes 420 open towards the side wall of the condensing chamber 110. A metal plate 200 is provided between the exhaust pipe 420 and the side wall of the condensing chamber 110. The metal plate 200 has multiple small holes 210. A filter screen 140 is provided on the upper wall of the condensing chamber 110, and the airflow is conducted to the drying chamber 120 through the filter screen 140. A drying chamber 120 contains a desiccant, and the exhaust pipe 150 is connected to the drying chamber 120. A dust and flue gas sampling host 500 is provided, which includes a dust inlet 510 and a flue gas inlet 520. The dust inlet 510 is connected to the exhaust pipe 150. The dust and flue gas sampling host 500 contains a dust sampling device and a flue gas sampling device. The dust sampling device includes an air chamber 530, a dust suction pump assembly 590, and a dust drainage pump 531. The dust inlet 510... The gas chamber 530 and the dust suction pump assembly 590 are sequentially connected. The gas chamber 530 is provided with a dust drain outlet, and the dust drain pump 531 is connected to the dust drain outlet. The flue gas sampling device includes a diaphragm pump 580, an electrochemical sensor assembly, and a flue gas drain pump 570. The flue gas inlet 520, the diaphragm pump 580, and the electrochemical sensor assembly are sequentially connected. The electrochemical sensor assembly is provided with a flue gas drain outlet 571, and the flue gas drain pump 570 is connected to the flue gas drain outlet 571.

[0030] like Figure 4The arrows indicate the flow path of the flue gas inside the high-efficiency gas-liquid separator. The high-efficiency gas-liquid separator of this design includes a housing 100, which contains a condensing chamber 110 and a drying chamber 120. After the flue gas enters the diversion and impact pipe 400, it impacts the conical diverter 410 inside the diversion and impact pipe 400. The top of the conical diverter 410 extends into the inlet section, and the exhaust pipes 420 are distributed near the bottom of the conical diverter 410. The conical diverter 410 diverts the flue gas into each exhaust pipe 420. The flue gas ejected from the exhaust pipes 420 first impacts the front of the metal plate 200, where some of the flue gas liquefies upon cooling. Then, some of the flue gas passes through the small holes 210 on the metal plate 200 and impacts the inner wall of the condensing chamber 110, where it liquefies a second time upon cooling. Finally, some of the flue gas impacts the inner wall of the condensing chamber 110. The flue gas bounces back to the other side of the metal plate 200, where it liquefies for the third time upon contact with cold air. Furthermore, the length of the metal plate can be set to extend close to the bottom of the condensing chamber, so some of the flue gas that bounces to the other side of the metal plate 200 bounces again to the inner wall of the condensing chamber 110, liquefies again upon contact with cold air, and then bounces back again upon contact with cold air, liquefying repeatedly. This repeated liquefaction process between the other side of the metal plate 200 and the inner wall of the condensing chamber 110 achieves efficient condensation and liquefaction of the flue gas. When the flue gas liquefies, the resulting water droplets settle and collect in the condensing chamber 110 under gravity. Because the length of the metal plate is set to extend close to the bottom of the condensing chamber, the lower part of the metal plate is gradually submerged by condensate. The condensate cools the metal plate, allowing subsequent flue gas to liquefy more quickly upon impact. The drying chamber 120 contains a desiccant, which is connected to the condenser chamber 110 via a filter 140. This allows the condensed flue gas to be dried by the desiccant and then flow out through the outlet pipe 150, resulting in high drying efficiency. The desiccant can be color-changing silica gel, and the shell 100 can be made of rigid plastic and transparent to facilitate observation of the color change of the internal silica gel.

[0031] After initial water removal by the gas-liquid separator 1000, the flue gas enters the flue gas inlet 510. The high-temperature flue gas then enters the gas chamber 530. Due to the temperature difference between the flue gas and the gas chamber 530, the flue gas liquefies upon cooling within the chamber. The flue gas drain outlet can be located at the bottom or near the bottom of the side wall of the gas chamber 530, facilitating the extraction of condensate from the gas chamber 530 by the flue gas drain pump 531. The diaphragm pump 580 operates, drawing flue gas into the flue gas inlet 520 and then pumping it into the electrochemical sensor assembly 560. Again, due to the temperature difference between the flue gas and the electrochemical sensor assembly 560, the flue gas liquefies upon cooling within the assembly. The flue gas drain pump 570 extracts the condensate from the electrochemical sensor assembly 560 through the flue gas drain outlet 571. A wastewater discharge port can be set on the flue gas sampling host 500. Flue gas drainage pump 531 and flue gas drainage pump 570 are respectively connected to the wastewater discharge port, and the condensate pumped by the flue gas drainage pump 531 and flue gas drainage pump 570 can be discharged through the wastewater discharge port. The flue gas drainage pump 531 and flue gas drainage pump 570 can be peristaltic pumps. In this embodiment, the flue gas drainage pump 531 can discharge the condensate in the flue gas sampling device, and the flue gas drainage pump 570 can discharge the condensate in the electrochemical sensor components in the flue gas sampling device, thereby increasing the service life of electromechanical and measuring devices and improving the accuracy of detection results. The sensor 563 can be an O2 sensor, SO2 sensor, NO sensor, NO2 sensor, CO sensor, CO2 sensor, or H2S sensor, and the number of sensors can be configured according to the type of measurement to be performed.

[0032] In one embodiment, the bottom of the condensation chamber 110 is provided with a drain port, and a plug 170 is detachably installed on the drain port; a vertical partition plate 160 is provided inside the drying chamber 120, which divides the drying chamber 120 into a first chamber and a second chamber, and a connecting port is provided between the first chamber and the second chamber. The condensation chamber 110 is connected to the first chamber through a filter screen 140; the exhaust pipe 150 is located at the top of the second chamber. The partition plate 160 divides the drying chamber 120 into a first chamber and a second chamber. The condensed flue gas enters the first chamber through the filter screen 140, and then enters the second chamber through the connecting port. After being dried by the desiccant in the first and second chambers, it is discharged from the exhaust pipe 150. The upper part of the partition plate 160 is connected to the top of the inner wall of the housing 100, and the lower part of the partition plate 160 is separated from the bottom of the inner wall of the housing 100 to form a communication port. A material inlet is located at the bottom of the inner wall of the housing 100, below the partition plate 160 and below the communication port. An end cap 180 is detachably installed on the material inlet. A handle 190 is provided at the upper part of the housing 100. All exhaust pipes 420 are arranged in a ring along the axis of the diversion vent pipe 400. There are four exhaust pipes 420 and four metal plates 200. The four exhaust pipes 420 open towards the front, rear, left, and right walls of the condensation chamber 110, respectively. The metal plates 200 correspond one-to-one with the exhaust pipes 420. To facilitate timely discharge of condensate, a drain port is provided at the bottom of the condensation chamber 110, and a plug 170 is detachably installed on the drain port. A gap is left between the lower part of the partition plate 160 and the bottom of the inner wall of the shell 100 to form a communication port, thus forming a U-shaped gas passage in the drying chamber 120, increasing the flow path of the flue gas in the drying chamber 120 and improving the drying effect. To facilitate the replacement of the desiccant, a feed port is provided at the bottom of the inner wall of the shell 100. The feed port is located below the communication port, thereby realizing the simultaneous discharge or injection of desiccant from the first chamber and the second chamber. The flue gas ejected from the exhaust pipe 420 first passes through the small holes 210 on the metal plate 200 and then impacts the inner wall of the condensation chamber 110. All the exhaust pipes 420 are arranged in a ring along the axis of the diversion impact pipe 400, effectively utilizing the temperature difference between each side wall of the condensation chamber 110 and the flue gas, further improving the liquefaction efficiency. There are four exhaust pipes 420 and four metal plates 200. The four exhaust pipes 420 open toward the front wall, rear wall, left wall and right wall of the condensation chamber 110 respectively. The metal plates 200 are arranged in a one-to-one correspondence with the exhaust pipes 420.The smoke and gas ejected from the exhaust pipe 420 first passes through the small holes 210 on the metal plate 200 and then impacts the inner wall of the condensing chamber 110. The temperature difference between the four side walls of the condensing chamber 110 and the smoke and gas is relatively large. The four exhaust pipes 420 are respectively oriented towards the four side walls of the condensing chamber 110, which helps to improve the liquefaction efficiency.

[0033] In one embodiment, the electrochemical sensor assembly 560 includes a front plate 561, a rear plate 562, and multiple sensors 563. Both the front plate 561 and the rear plate 562 are provided with multiple sensor mounting ports 565, all of which are connected via a gas duct 564. Each sensor 563 is installed in a corresponding manner to one of the sensor mounting ports 565. The front plate 561 is provided with an air inlet 567, an air outlet 568, and a drain duct 572. The flue gas drain outlet 571 is located on the front plate 561. The air inlet 567 and the air outlet 568 are respectively located at the beginning and end of the gas duct 564. The two ends of the drain duct 572 are... The sensor 563, drain channel 572, and air duct 564 are not connected to the air duct 564 or the flue gas drain outlet 571. The front and rear panels 561 and 562 enclose and seal the sensor 563, drain channel 572, and air duct 564. The diaphragm pump 580 is connected to the flue gas inlet 520 and the air inlet 567, respectively. There are more than two sensor mounting ports 565, including a first mounting port and a second mounting port. The air inlet 567 is connected to the first mounting port. There are two drain channels 572, with the first ends of the two drain channels 572 connected to the first mounting port and the second mounting port, respectively, and the ends of both drain channels 572 connected to the flue gas drain outlet 571. The sensor 563 can use O2.

[0034] The sensor 560 can be equipped with various sensors, including SO2, NO, CO, and H2S sensors, and the number of sensors can be configured according to the type of measurement required. Each sensor 563 is installed in the sensor mounting port 565. The front and rear panels 561 and 562 seal the sensors 563, drainage channel 572, and gas channel 564. Therefore, flue gas enters the electrochemical sensor assembly 560 through the inlet 567, then passes through the gas channel 564 and multiple sensors 563 one by one, finally exiting from the outlet 568. The flue gas condenses in the gas channel 564, and the flue gas drainage pump 570 discharges the condensate from the gas channel 564 through the flue gas drainage port 571, thereby increasing the service life of the sensors 563 and improving the accuracy of the detection results. After multiple experiments, it was found that when the flue gas flows through the air passage 564 and passes through multiple sensors 563, the high-temperature flue gas mainly concentrates at the first and second sensors 563 where it encounters the most cooling and liquefaction. The reason for this may be that after the high-temperature flue gas encounters cooling and liquefaction at the first and second sensors 563, its temperature gradually decreases. The temperature difference between the flue gas after the temperature decreases and the subsequent sensors 563 is not very large, so less condensation is formed at the other sensors 563. Therefore, to expedite the drainage of the main condensate, two drainage channels 572 are installed. The first ends of each drainage channel 572 are connected to the first and second mounting ports, respectively, and the ends of both channels are connected to the flue gas drain port 571. The flue gas drainage pump 570 drains the condensate concentrated at the first and second sensors 563 through the flue gas drain port 571 and the two drainage channels 572. After the condensate at the first and second sensors 563 is drained, the flue gas drainage pump 570 continues to operate, and a small amount of condensate at other sensor mounting ports 565 will also flow in the opposite direction along the gas duct 564 towards the flue gas drain port 571 and then be discharged. Figure 3 As shown, the first and second sensors 563 and the flue gas drain outlet 571 are in an inverted triangle shape, which makes it easier for the condensate at the first and second sensors 563 to drain.

[0035] In one embodiment, the gas chamber 530 has a dust filter 540 and a flue gas filter 550 with identical structures on the side wall facing the dust and flue gas sampling host 500. The dust inlet 510 and the flue gas inlet 520 are respectively connected to the dust filter 540 and the flue gas filter 550. The gas chamber 530 has a filter element cavity 541. The dust filter 540 includes a filter element 542 disposed in the filter element cavity 541, a sealing ring 544 for sealing the filter element cavity 541, and a sealing cover 545 for opening or closing the filter element cavity 541. The sealing cover 545 seals the sealing ring 544 and the filter element 542 together in the filter element cavity 541. The filter element cavity 541 is connected to the dust inlet 510. The sealing cover 545 has a protruding locking protrusion 546, and the opening of the filter element cavity 541 has a slot 543 for the locking protrusion 546 to enter and exit. The filter element cavity 541 has a slot 547 that engages with the locking protrusion 546. After the locking protrusion 546 of the sealing cover 545 rotates through the slot 543, it is constrained and fixed by the slot 547. There are multiple locking protrusions 546 and slots 543. All locking protrusions 546 are arranged in a ring along the axis of the sealing cover 545, and all slots 543 are arranged in a ring along the axis of the opening of the filter element cavity 541. The locking protrusions 546 and slots 543 are arranged in a one-to-one correspondence. The air chamber 530 and the sealing cover 545 are both made of rigid transparent plastic. The flue gas sampling unit 500 is equipped with a pump for drawing in flue gas and dust, a flow meter for detecting the flow rate of flue gas and dust, and an electrochemical sensor for measuring various parameters such as CO2, CO, NOx, and SO2. Flue gas and dust can enter through the flue gas inlet 510 and the flue gas inlet 520 respectively, and are filtered by the flue gas filter 540 and the flue gas filter 550 before entering subsequent processing steps. Figure 8 As shown, the arrows indicate the path of the smoke and dust entering the filter chamber 541 and being filtered. Figures 6 to 8As shown, both the dust filter 540 and the flue gas filter 550 are installed on the side wall of the dust and flue gas sampling host 500. The sealing cover 545 seals the sealing ring 544 and the filter element 542 together in the filter element cavity 541. The sealing ring 544 provides a sealing effect. The filter element cavity 541 can be opened or closed through the sealing cover 545, allowing for real-time monitoring of the filter element 542's usage status and timely cleaning and replacement. The dust filter 540 filters dust using the same principle as the flue gas filter 550, which has the same structure. When the filter element cavity 541 needs to be closed, first place the filter element 542 and the sealing ring 544 into the filter element cavity 541. Then, align the locking protrusion 546 of the sealing cover 545 with the slot 543 and insert it into the slot 547 of the filter element cavity 541. Then, rotate the filter element cavity 541. The locking protrusion 546 of the sealing cover 545 is constrained and fixed by the slot 547, thereby sealing the sealing ring 544 and the filter element 542 together in the filter element cavity 541. When the filter element cavity 541 needs to be opened, simply rotate the sealing cover 545 in the opposite direction and align the locking protrusion 546 of the sealing cover 545 with the slot 543 to open the sealing cover 545. To achieve a better sealing effect, multiple locking protrusions 546 and grooves 543 are provided, with each protrusion 546 and groove 543 corresponding one-to-one. All the locking protrusions 546 and grooves 543 are arranged in a ring along the axis of the sealing cover 545 and the axis of the opening of the filter element cavity 541, respectively. The air chamber 530 and the sealing cover 545 are made of rigid transparent plastic, allowing for easy observation of the filter element 542's usage status and convenient cleaning and replacement.

[0036] In one embodiment, the smoke and dust suction pump assembly 590 includes a base 591 and a cover 594. An air suction pump 592 is mounted on the base 591, and the cover 594 encloses the air suction pump 592 on the base 591. The bottom of the base 591 has multiple rubber support feet 595. The base 591 has a sound inlet hole 593 for sound entry. A sound-diffusing tube 597 is located inside the base 591. One side of the sound-diffusing tube 597 has multiple sound-diffusing holes 5971, and the other side of the sound-diffusing tube 597 is sealed. The sound-diffusing tube 597 is located below the sound inlet hole 593. The base 591 also has multiple reflector tubes 598, all of which are parallel to and spaced apart from the sound-diffusing tube 597. Figures 9 to 11 As shown, the bottom of the base 591 is provided with multiple rubber support feet 595, which can reduce the noise generated by the vibration of the suction pump 592; the cover 594 covers the suction pump 592 on the base 591, and most of the noise generated by the suction pump 592 enters the base 591 through the sound inlet 593. Since one side of the sound diffuser tube 597 is sealed and the other side is provided with multiple sound diffuser holes 5971, the noise is diffused by the sound diffuser holes 5971 on the sound diffuser tube 597, or diffused along the open end of the sound diffuser tube 597, such as... Figure 11As shown by the middle arrow, noise is reflected and absorbed multiple times within the base 591. Some noise enters the reflector tube 598, and some noise emitted from the reflector tube 598 cancels out the noise transmitted from the sound-diffusing tube 597, further reducing noise and achieving good sound insulation. Of course, since the suction pump 592 also generates heat during operation, and its outer casing 594 makes heat dissipation difficult, a cooling fan can be installed on the base 591. The casing 594 has a heat dissipation opening at the cooling fan location, allowing the cooling fan to dissipate the heat generated by the suction pump 592. A hollow hole 5951 is provided in the middle of the rubber support foot 595. This reduces the noise generated by the vibration of the suction pump 592. Furthermore, the hollow hole 5951 in the middle of the rubber support foot 595 provides even better shock absorption, further reducing the noise generated by the vibration of the suction pump 592. The enclosure 594 can be made of metal plate. The inner wall of the enclosure 594 is lined with sound-absorbing cotton. Some of the noise generated when the suction pump 592 operates can be absorbed by the sound-absorbing cotton on the inner wall of the enclosure 594, further reducing the noise generated by the suction pump 592. The suction pump 592 can be fixedly mounted on the base 591 using screws and mounting holes 596 to prevent additional noise from collisions between the suction pump 592 and the base 591 or enclosure 594 during operation. The noise generated by the suction pump 592 enters the base 591 through the sound inlet 593. The noise is diffused by the sound-diffusing holes 5971 on the sound-diffusing tube 597, or diffused along the opening of the sound-diffusing tube 597. The noise is absorbed by the sound-absorbing cotton inside the base 591. The outer wall of the base 591 is also lined with sound-absorbing cotton, further reducing the transmission of noise from within the base 591, resulting in good sound insulation.

[0037] In one embodiment, the cover 594 has heat dissipation vents at its left and right ends, and a battery cooling fan 610 and a pump cooling fan 620 are respectively installed at the two vents. The smoke and dust sampling host 500 also has a battery compartment 600, which is arranged side-by-side with the battery cooling fan 610 spaced apart. Both the battery cooling fan 610 and the pump cooling fan 620 blow air to the right. The battery cooling fan 610, the pump cooling fan 620, and the suction pump 592 are electrically connected to the battery compartment 600. The battery compartment 600 and the battery cooling fan 610 are spaced at least 5 cm apart. The left and right sides of the instrument body 500 have battery heat dissipation holes and pump heat dissipation holes, respectively. The battery compartment 600 is located near the battery heat dissipation holes, and the pump cooling fan 620 is located near the pump heat dissipation holes. Figure 1 , Figure 12 , Figure 13As shown, the housing 594 encloses the suction pump 592 on the base 591. The heat generated by the suction pump 592 can only be dissipated through the heat dissipation vents at both ends. A battery cooling fan 610 and a pump body cooling fan 620 are respectively installed at the two heat dissipation vents. Both the battery cooling fan 610 and the pump body cooling fan 620 blow air to the right during operation. The battery cooling fan 610 blows air from near the battery compartment 600 towards the suction pump 592, thereby cooling the battery compartment 600. Compared to the heat generated by the suction pump 592, the heat generated by the battery compartment 600 is smaller. The battery cooling fans 610 and the pump body cooling fans 620 on both sides of the suction pump 592 simultaneously blow air to the right, thereby cooling the suction pump 592. This embodiment can effectively dissipate the heat generated by the battery compartment 600 and the suction pump 592, with good heat dissipation effect. The battery compartment 600 and the pump body assembly can be mounted using a mounting plate, with the battery compartment 600 and the pump body assembly mounted side-by-side on the mounting plate. If the battery compartment 600 and the battery cooling fan 610 are too close together, the battery cooling fan 610 can only blow a small amount of air from the vicinity of the battery compartment 600 towards the intake pump 592, resulting in poor heat dissipation of the battery compartment 600. Therefore, the battery compartment 600 and the battery cooling fan 610 should be at least 5 cm apart, leaving a certain gap for airflow. The battery compartment 600 is positioned near the battery heat dissipation hole. When the battery cooling fan 610 is working, it draws in external air from the battery heat dissipation hole, and the external air flows through the battery compartment 600 to dissipate heat. The pump body cooling fan 620 is positioned near the pump body heat dissipation hole. The battery cooling fan 610 and the pump body cooling fan 620 simultaneously blow air to the right, dissipating the heat generated by the intake pump 592 outward through the pump body heat dissipation hole, thus dissipating heat from the intake pump 592.

[0038] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims

1. A flue gas sampling device with efficient water removal function, characterized in that, include: A gas-liquid separator includes a housing with a diverting gas pipe and an outlet pipe connected to it. The housing contains a condensation chamber and a drying chamber. The diverting gas pipe leads to the condensation chamber. The upper part of the diverting gas pipe is an inlet section, and the lower part is connected to multiple exhaust pipes. A conical diverter is installed inside the diverting gas pipe to divert the flue gas entering from the inlet section into each exhaust pipe. All exhaust pipes open towards the side wall of the condensation chamber. A metal plate with multiple small holes is installed between the exhaust pipes and the side wall of the condensation chamber. A filter screen is installed on the upper wall of the condensation chamber, leading to the drying chamber. A desiccant is contained in the drying chamber, and the outlet pipe leads to the drying chamber. A flue gas sampling host is provided with a flue gas inlet and a flue gas inlet, the flue gas inlet being connected to an outlet pipe; the flue gas sampling host is provided with a flue gas sampling device and a flue gas sampling device, the flue gas sampling device including a gas chamber, a flue gas suction pump assembly, and a flue gas drainage pump, the flue gas inlet, the gas chamber and the flue gas suction pump assembly being connected in sequence, the gas chamber having a flue gas drainage outlet, the flue gas drainage pump being connected to the flue gas drainage outlet; the flue gas sampling device includes a diaphragm pump, an electrochemical sensor assembly and a flue gas drainage pump, the flue gas inlet, the diaphragm pump and the electrochemical sensor assembly being connected in sequence, the electrochemical sensor assembly having a flue gas drainage outlet, the flue gas drainage pump being connected to the flue gas drainage outlet, all the exhaust pipes being arranged in a ring along the axis of the diversion and impact pipe, and the metal plates being arranged one-to-one with the exhaust pipes; The electrochemical sensor assembly includes a front plate, a rear plate, and multiple sensors. Both the front and rear plates have multiple sensor mounting ports, all of which are connected via gas channels. Each sensor is installed in a corresponding port. The front plate has an air inlet, an air outlet, and a drainage channel. The flue gas drainage outlet is located on the front plate. The air inlet and outlet are located at the beginning and end of the gas channel, respectively. The two ends of the drainage channel are connected to the gas channel and the flue gas drainage outlet, respectively. The front and rear plates enclose and seal the sensors, the drainage channel, and the gas channel.

2. The flue gas sampling device with high-efficiency water removal function as described in claim 1, characterized in that, The bottom of the condensing chamber is provided with a drain port, and a plug can be detachably installed on the drain port; a vertical partition plate is provided in the drying chamber, which divides the drying chamber into a first chamber and a second chamber, and a communication port is provided between the first chamber and the second chamber. The condensing chamber is connected to the first chamber through a filter screen; the exhaust pipe is located at the top of the second chamber; the upper part of the partition plate is connected to the top of the inner wall of the shell, and the lower part of the partition plate is left with a gap to the bottom of the inner wall of the shell to form a communication port; the material inlet is located below the partition plate and below the communication port. The material inlet is located at the bottom of the inner wall of the shell, and an end cap can be detachably installed on the material inlet. The upper part of the shell is provided with a handle; there are four exhaust pipes and four metal plates. The four exhaust pipes open toward the front wall, rear wall, left wall, and right wall of the condensing chamber, respectively.

3. The flue gas sampling device with high-efficiency water removal function as described in claim 1, characterized in that, The diaphragm pump is connected to the flue gas inlet nozzle and the air inlet, respectively; the number of sensor mounting ports is more than two, including a first mounting port and a second mounting port, the air inlet is connected to the first mounting port, there are two drainage channels, the first ends of the two drainage channels are connected to the first mounting port and the second mounting port, respectively, and the ends of the two drainage channels are connected to the flue gas drain outlet.

4. The flue gas and dust sampling device with high-efficiency water removal function as described in claim 1, characterized in that, The gas chamber has a dust filter and a flue gas filter with identical structures on its side wall facing the flue gas sampling host. The dust inlet and the flue gas inlet are respectively connected to the dust filter and the flue gas filter. The gas chamber has a filter element cavity. The dust filter includes a filter element disposed in the filter element cavity, a sealing ring for sealing the filter element cavity, and a sealing cover for opening or closing the filter element cavity. The sealing cover seals the sealing ring and the filter element together in the filter element cavity. The filter element cavity is connected to the dust inlet. The sealing cap has a protruding locking protrusion, and the opening of the filter element cavity has a slot for the locking protrusion to enter and exit. The filter element cavity has a slot that engages with the locking protrusion. After the locking protrusion of the sealing cap passes through the slot and rotates, it is constrained and fixed by the slot. There are multiple locking protrusions and slots. All the locking protrusions are arranged in a ring along the axis of the sealing cap, and all the slots are arranged in a ring along the axis of the opening of the filter element cavity. The locking protrusions and slots are arranged in a one-to-one correspondence. The air chamber and the sealing cap are both made of rigid transparent plastic.

5. A flue gas sampling device with high-efficiency water removal function as described in claim 1, characterized in that, The smoke and dust suction pump assembly includes a base and a cover. An air pump is mounted on the base, and the cover encloses the air pump on the base. The bottom of the base has multiple rubber support feet. The base has a sound inlet for sound entry, and a sound-diffusing tube is located inside the base. One side of the sound-diffusing tube has multiple sound-diffusing holes, and the other side of the tube is sealed. The sound-diffusing tube is located below the sound inlet. The base also contains multiple reflector tubes, all of which are parallel to and spaced apart from the sound-diffusing tube. A hollow hole is formed in the center of each rubber support foot. The inner wall of the cover is lined with sound-absorbing cotton. The base has two mounting holes through which the air pump is fixedly mounted. Both the inner and outer walls of the base are lined with sound-absorbing cotton. The smoke and dust inlet nozzle, air chamber, and air pump are sequentially connected.

6. The flue gas sampling device with high-efficiency water removal function as described in claim 5, characterized in that, The cover has heat dissipation vents at both ends, and a battery cooling fan and a pump cooling fan are respectively installed at the two vents. The smoke and gas sampling host also has a battery compartment. The battery compartment and the battery cooling fan are arranged side by side with a gap. Both the battery cooling fan and the pump cooling fan are set to blow air to the right. The battery cooling fan, the pump cooling fan and the suction pump are electrically connected to the battery compartment. The battery compartment and the battery cooling fan are arranged at least 5 cm apart.

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